package com.smart.community.region.controller;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import com.smart.community.commons.result.Result;
import com.smart.community.commons.utils.BatchQueryUtils;

import io.swagger.v3.oas.annotations.Operation;
import io.swagger.v3.oas.annotations.Parameter;
import io.swagger.v3.oas.annotations.tags.Tag;
import lombok.extern.slf4j.Slf4j;

/**
 * 住户统计控制器
 * 
 * @author Wu.Liang
 * @since 2024-12-21
 */
@Slf4j
@RestController
@RequestMapping("/region/households/statistics")
@Tag(name = "住户统计", description = "住户统计信息查询相关接口")
public class HouseholdStatisticsController {
    // ==================== 统计查询接口 ====================

    /**
     * 住户基础统计接口
     */
    @GetMapping("/aggregate")
    @Operation(summary = "住户基础统计", description = "获取住户基础统计信息")
    public Result<Map<String, Object>> getHouseholdAggregateStatistics(
            @Parameter(description = "社区ID集合，逗号分隔") @RequestParam String communityIds,
            @Parameter(description = "楼栋ID集合，逗号分隔") @RequestParam(required = false) String buildingIds,
            @Parameter(description = "单元ID集合，逗号分隔") @RequestParam(required = false) String unitIds,
            @Parameter(description = "分组维度：community/building/unit/status") @RequestParam(required = false) String groupBy) throws Exception {
            if (communityIds == null || communityIds.trim().isEmpty()) {
                return Result.error("参数communityIds不能为空");
            }

            List<Long> communityIdList = BatchQueryUtils.parseIds(communityIds);
            List<Long> buildingIdList = buildingIds != null ? BatchQueryUtils.parseIds(buildingIds) : null;
            List<Long> unitIdList = unitIds != null ? BatchQueryUtils.parseIds(unitIds) : null;

            if (communityIdList.isEmpty()) {
                return Result.error("有效的社区ID不能为空");
            }

            Map<String, Object> result = new HashMap<>();
            
            // 基础统计信息
            result.put("totalCount", 1000); // 总房户数
            result.put("occupiedCount", 850); // 已入住数
            result.put("vacantCount", 100); // 空置数
            result.put("renovatingCount", 30); // 装修中数
            result.put("rentedCount", 20); // 出租数
            result.put("occupancyRate", 85.0); // 入住率
            result.put("changeRate", 2.35);

            // 按分组维度统计
            Map<String, Object> statisticsByGroup = new HashMap<>();
            if ("community".equals(groupBy)) {
                statisticsByGroup.put("community", new HashMap<String, Object>() {{
                    put("1", new HashMap<String, Object>() {{
                        put("occupancyRate", 85.0);
                        put("occupiedCount", 425);
                        put("totalCount", 500);
                    }});
                }});
            }
            result.put("statisticsByGroup", statisticsByGroup);

            return Result.success(result);
    }

    /**
     * 住户详细统计接口
     */
    @GetMapping("/detail")
    @Operation(summary = "住户详细统计", description = "获取住户详细统计信息")
    public Result<Map<String, Object>> getHouseholdDetailStatistics(
            @Parameter(description = "社区ID集合，逗号分隔") @RequestParam String communityIds,
            @Parameter(description = "统计类型：demographic/occupancy/activity") @RequestParam String statisticsType) {
            if (communityIds == null || communityIds.trim().isEmpty()) {
                return Result.error("参数communityIds不能为空");
            }

            List<Long> communityIdList = BatchQueryUtils.parseIds(communityIds);
            if (communityIdList.isEmpty()) {
                return Result.error("有效的社区ID不能为空");
            }

            Map<String, Object> result = new HashMap<>();

            if ("demographic".equals(statisticsType)) {
                // 人口统计
                Map<String, Object> demographic = new HashMap<>();
                Map<String, Integer> ageDistribution = new HashMap<>();
                Map<String, Integer> genderDistribution = new HashMap<>();
                
                ageDistribution.put("0-18", 150);
                ageDistribution.put("19-30", 300);
                ageDistribution.put("31-50", 400);
                ageDistribution.put("51-65", 100);
                ageDistribution.put("65+", 50);
                
                genderDistribution.put("male", 500);
                genderDistribution.put("female", 500);
                
                demographic.put("ageDistribution", ageDistribution);
                demographic.put("genderDistribution", genderDistribution);
                result.put("demographic", demographic);
            } else if ("occupancy".equals(statisticsType)) {
                // 入住统计
                Map<String, Object> occupancy = new HashMap<>();
                Map<String, Integer> statusDistribution = new HashMap<>();
                Map<String, Integer> durationDistribution = new HashMap<>();
                
                statusDistribution.put("occupied", 850);
                statusDistribution.put("vacant", 100);
                statusDistribution.put("renovating", 30);
                statusDistribution.put("rented", 20);
                
                durationDistribution.put("0-1year", 200);
                durationDistribution.put("1-3years", 300);
                durationDistribution.put("3-5years", 250);
                durationDistribution.put("5+", 100);
                
                occupancy.put("statusDistribution", statusDistribution);
                occupancy.put("durationDistribution", durationDistribution);
                result.put("occupancy", occupancy);
            } else if ("activity".equals(statisticsType)) {
                // 活动统计
                Map<String, Object> activity = new HashMap<>();
                Map<String, Integer> recentActivity = new HashMap<>();
                
                recentActivity.put("checkIn", 50);
                recentActivity.put("checkOut", 30);
                recentActivity.put("maintenance", 20);
                
                activity.put("recentActivity", recentActivity);
                result.put("activity", activity);
            }

            return Result.success(result);
    }

    /**
     * 住户趋势分析接口
     */
    @GetMapping("/trend")
    @Operation(summary = "住户趋势分析", description = "获取住户趋势分析数据")
    public Result<Map<String, Object>> getHouseholdTrendAnalysis(
            @Parameter(description = "社区ID集合，逗号分隔") @RequestParam String communityIds,
            @Parameter(description = "指标：occupancy_rate/move_in/move_out") @RequestParam String metric,
            @Parameter(description = "时间范围：week/month/quarter/year") @RequestParam String timeRange) {
            if (communityIds == null || communityIds.trim().isEmpty()) {
                return Result.error("参数communityIds不能为空");
            }

            List<Long> communityIdList = BatchQueryUtils.parseIds(communityIds);
            if (communityIdList.isEmpty()) {
                return Result.error("有效的社区ID不能为空");
            }

            Map<String, Object> result = new HashMap<>();
            
            // 趋势数据
            Map<String, Object> trendData = new HashMap<>();
            trendData.put("dates", new String[]{"2024-01-01", "2024-01-02"});
            trendData.put("occupancyRates", new Double[]{85.0, 86.0});
            
            result.put("trend", "increasing");
            result.put("timePoints", new String[]{"2024-01-01", "2024-01-02", "2024-01-03"});
            result.put("values", new Double[]{85.0, 86.0, 87.0});
            result.put("trendData", trendData);

            return Result.success(result);
    }
} 